feat:修改创建直播课

src/modules/course-manage/AddLive.jsx

@@ -299,11 +299,12 @@ handleChangeBasicInfo = (field, value) => {
         mediaType:'PICTURE',
         mediaUrl: coverUrl,
       }
-      let scheduleMediaRequests;
+      let scheduleMediaRequests = [...liveCourseMediaRequests];
       if(coverId){
-        scheduleMediaRequests = [coverObj,liveCourseWarmMedia,...liveCourseMediaRequests]
-      }else{
-        scheduleMediaRequests = [liveCourseWarmMedia,...liveCourseMediaRequests]
+        scheduleMediaRequests = [coverObj,...scheduleMediaRequests]
+      }
+      if(liveCourseWarmMedia && liveCourseWarmMedia.mediaUrl){
+        scheduleMediaRequests = [liveCourseWarmMedia,...scheduleMediaRequests]
       }
       const commonParams = {
         adminIds:assistant,